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UHPC pipe-concrete prefabricated assembled combined pier with socket joint type connector and construction method of pier

A prefabricated assembly and construction method technology, applied in the direction of erecting/assembling bridges, bridges, bridge materials, etc., can solve the problems of long construction period of bridge piers, inconvenient factory manufacturing, etc., to ensure structural quality, improve construction speed, and good bending resistance performance effect

Pending Publication Date: 2018-11-13
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this stage, many domestic bridge piers adopt the form of cast-in-place reinforced concrete structure. This form of bridge piers has a long construction period and is not convenient for factory manufacturing.

Method used

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  • UHPC pipe-concrete prefabricated assembled combined pier with socket joint type connector and construction method of pier
  • UHPC pipe-concrete prefabricated assembled combined pier with socket joint type connector and construction method of pier
  • UHPC pipe-concrete prefabricated assembled combined pier with socket joint type connector and construction method of pier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment discloses a construction method for a UHPC pipe-concrete prefabricated assembled bridge pier with a socket joint, including the following steps:

[0039] 1) According to the geological conditions, the foundation part of the construction site should be improved. A base hole 1 is arranged on the upper surface of the foundation. Wherein, two bolts 9 are embedded in the bottom of the base hole 1 .

[0040] 2) Prefabricated pier body. Wherein, the pier column body includes a UHPC part hollow column 2 and an ordinary concrete column 3 . The UHPC partially hollow column 2 includes a hollow UHPC tube 201 and a solid UHPC column 202 . The solid UHPC column 202 is disposed at the bottom of the hollow UHPC tube 201 . The hollow UHPC tube 201 and the solid UHPC column 202 are integrated. Ordinary concrete is poured into the cavity of the hollow UHPC pipe 201 to form an ordinary concrete column 3 . The hollow column 2 of the UHPC part has longitudinal stress ba...

Embodiment 2

[0052] see figure 1 , this embodiment discloses a UHPC pipe-concrete prefabricated assembled composite bridge pier with socket joints prepared by the method described in Embodiment 1, including a pier column body implanted into the base 6 .

[0053] see figure 2 , 3and 4, the pier column body includes a UHPC part hollow column 2 and an ordinary concrete column 3 . The UHPC partially hollow column 2 includes a hollow UHPC tube 201 and a solid UHPC column 202 . The hollow UHPC tube 201 is a hollow circular tube. The solid UHPC column 202 is a solid cylinder. The solid UHPC column 202 is disposed at the bottom of the hollow UHPC tube 201 . The hollow UHPC tube 201 and the solid UHPC column 202 are integrated. Ordinary concrete is poured into the cavity of the hollow UHPC pipe 201 to form an ordinary concrete column 3 . The hollow column 2 of the UHPC part has longitudinal stress bars 4 and stirrups 5 inside. The longitudinal stress bars 4 and stirrups 5 together form a r...

Embodiment 3

[0056] see Figure 5 , this embodiment discloses a UHPC pipe-concrete prefabricated assembled composite bridge pier with socket joints prepared by the method described in Embodiment 1, including a pier column body implanted into the base 6 .

[0057] see Figure 6 , 7 and 8, the pier column body includes a UHPC part hollow column 2 and an ordinary concrete column 3 . The UHPC partially hollow column 2 includes a hollow UHPC tube 201 and a solid UHPC column 202 . The hollow UHPC tube 201 is a hollow square tube. The solid UHPC column 202 is a solid square column. The solid UHPC column 202 is disposed at the bottom of the hollow UHPC tube 201 . The hollow UHPC tube 201 and the solid UHPC column 202 are integrated. Ordinary concrete is poured into the cavity of the hollow UHPC pipe 201 to form an ordinary concrete column 3 . The hollow column 2 of the UHPC part has longitudinal stress bars 4 and stirrups 5 inside. The longitudinal stress bars 4 and stirrups 5 together for...

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PUM

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Abstract

The invention provides a UHPC pipe-concrete prefabricated assembled combined pier with a socket joint type connector and a construction method of the pier. The construction method of the pier comprises the steps of arranging a base hole, prefabricating a pier column body, placing the pier column body, pouring a base and the like. The method effectively ensures the uniformity of structural qualityand improves the construction speed and the standardization degree of components. The bearing capacity and the durability of the structure are improved, and the structure has better bending resistance.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to a prefabricated assembled bridge pier. Background technique [0002] In recent decades, a number of sea-crossing bridges have been built in my country. Generally, sea-crossing bridges have many spans and many piers. In addition, the weather, hydrology, terrain, and geological conditions of cross-sea bridges are relatively complex, and the service period is affected by many factors such as seawater chloride, temperature, and seawater velocity. Due to the strong corrosiveness of the marine environment, the substructure of cross-sea bridges is generally made of marine concrete or even stainless steel reinforcement or FRP reinforcement, which is very expensive. At present, many domestic bridge piers are cast-in-place reinforced concrete structures, which have a long construction period and are not convenient for industrial manufacturing. [0003] Ultra-high performance concrete (U...

Claims

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Application Information

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IPC IPC(8): E01D19/02E01D21/00E01D101/26
CPCE01D19/02E01D21/00E01D2101/26
Inventor 赵英驰冯锦鹏吴祥均张志刚徐梁晋秦凤江
Owner CHONGQING UNIV